It is first raised that safety coefficient can be calculated by using the widths of yield zone and pillar, and the steps of designing the strip mining size are pro-posed.
首次提出了根据屈服带宽度和条带煤柱宽度来确定条带开采安全系数的方法，同时给出了设计条带开采尺寸的步聚。
The results show that the failure of dam foundation is caused mainly by the extension of dam heel crack and the expansion of shear-yield zone of the foundation rock near the dam toe.
结果表明，坝基的破坏主要表现为坝踵裂缝的延伸和坝趾附近基岩剪切屈服区的扩展。
The traditional method which focuses on displacement, stress and yield zone has some difficulties in stability and reinforcement analysis during excavation in underground engineering.
地下工程的开挖稳定和加固分析是岩土工程中的难题之一。
Evapotranspiration, yield, production value, and soil moisture in root zone for 30 kinds of intercropping systems under different irrigation water application were studied in this paper.
对30余种间作套种组合种植作物的耗水量、产量、产值及其根区土壤含水量进行了分析研究。
The data of daily mean temperature, precipitation and wheat yield in Liuzhi special zone from 1988 to 2008 were used to analyze the relationship between lower temperature in spring and wheat yield.
利用六枝特区1988 - 2008年的日平均气温、降水资料以及同期的小麦产量数据，分析了倒春寒天气特征及其与小麦产量的关系。
According to the modern seismic conception, the critical zone of the RC member can be in the state of inelastic deformation after yield under strong motion.
现代抗震设计思想允许相应的钢筋混凝土结构构件的控制部位在强烈地震作用下进入屈服后非弹性变形状态。
The forage yield, re-growth and quality of the Pennisetum hybrid following different grain and forage corps were studied in an agricultural zone in the Yangtze River Basin.
对长江流域农区不同粮草前作下杂交狼尾草的草产量、再生情况和营养品质进行了研究。
But, as time goes on, great amounts of injected water flows along the high permeable zone, which results in early watered-out producers and declining yield.
但是，随着开发年限的延长，大量的注入水沿水洗强度较高的高渗透带窜流，导致油井过早水淹，产油量下降。
The result showed that the homogeneous degree of the soil nutrient was increased, the variability of spectral index and the yield were reduced in the management zone divided by soil data.
结果表明，利用土壤养分和光谱数据划分的管理分区内，各土壤养分的均一度得到了提高，光谱指数和产量的变异系数普遍降低。
According to the management zone map, there is little potential to improve yield of the yield stable area;
根据农田管理区域图，连续多年产量比较稳定的区域（包括稳定低产、中产和高产区），其产量提高潜力较小；
Yield spreads on bonds issued by Italy, Spain and other heavily indebted euro-zone countries narrowed to their lowest level in two weeks against benchmark German bonds.
相对德国基准债券，意大利，西班牙和其他负债累累的欧元区国家发行的债券利差收至两个星期来的最低水平。
According to mine inflow point location and water yield, water rich zone in front of roadway checked out by transient electromagnetic method adopted a water control scheme of shallow g...
基于涌水点位置与出水量，以及瞬变电磁法确定的巷道前方富水区域情况，确定了采用浅层注浆法封堵的治水方案。
The yield of the annual forage and feed crops mixture grassland in agro-pastoral transitional zone of Yanmenguan region in Shanxi was studied.
研究了雁门关农牧交错带不同一年生牧草及饲料作物混播草地的产草量。
The size of the roughly hemispherical destruction zone that results depends on the yield of the weapon, the detonation depth and the composition of the ground.
大致呈半球形的破坏区域，大小依核弹的当量、引爆深度和土壤质地而定。
A process for increasing the yield of C3 and C4 olefins by injecting light cat naphtha and cat cycle oil together with steam into an upstream reaction zone of a FCC riser reactor.
通过将轻催化石脑油和催化循环油与水蒸汽一起注入FCC提升管反应器的上游反应区提高C3和C4烯烃产率的方法。
This article introduces a method for determining hydrogeological parameters such as the field capacity in zone of aeration and the specific yield in aquifer where water content is varied.
本文介绍利用中子仪测定水文地质参数包气带田间持水量和含水层变幅带给水度的原理与方法。
The paper studied the runoff generation and sediment yield regulations of the natural slope-green-land in loess zone by the simulated rainfall.
通过野外模拟降雨试验，研究黄土区天然草坡的产流、产沙规律。
The crop productivity would affect the yield and the population carrying capacity, so the study on the climate change in agro pastoral zone was very important.
由于作物生产力会直接影响粮食产量进而影响到该地区的人口承载力，所以研究农牧交错带地区的气候变化及其对人口承载力的影响有非常重要的意义。
The crop productivity would affect the yield and the population carrying capacity, so the study on the climate change in agro pastoral zone was very important.
由于作物生产力会直接影响粮食产量进而影响到该地区的人口承载力，所以研究农牧交错带地区的气候变化及其对人口承载力的影响有非常重要的意义。
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